Davis Instruments Vantage Pro2 manual Thsw

Weather Data Specifications

Weather Data Specifications

Variable	Required Sensors	Resolution	Range	Nominal Accuracy
				(+/-)
Solar Radiation	Solar sensor	1 W/m2	0 to 1800 W/m2	5% of full scale
Inside	Included in Console	0.1°F; 0.1°C	+32° to +140°F; 0 to	1°F; 0.5°C
Temperature			+60°C
Outside	ISS, Temp Station		-40°to +150°F;
	or Temp Hum	0.1°F; 0.1°C		1°F; 0.5°C
Temperature***			-40°to +65°C
	Station
	ISS, Temp Station,
Extra Temperature	Temp Hum Station,	1°F; 1°C	-40°to +150°F	1°F (0.5°C)
	Leaf Soil Station or		-40°to +65°C
	Soil Station
Heat Index	ISS or Temp/Hum	1°F; 1°C	-40°to +135°F;	3°F (1.5°C)
	Station		-40°to +57° C
Temp-Hum-Sun-	ISS & Solar	1°F; 1°C	-90°to +135°F;	4°F (2°C)
Wind index
	Radiation		-68°to +64° C
(THSW)
Time	Included in Console	1 min	24 hours	8 sec/mon
Date		1 day	month/day	8 sec/mon
UV Index		0.1 Index	0 to 16	5% of full scale
	UV Radiation
UV Dose		0.1 MED < 20,	0 to 199 MEDs	5%
		1 MED > 20
Wind Direction		1°	0 to 360°	7°
Compass Rose		22.5°	16 compass pts	0.3 compass pt
Wind Speed (large			2 to 150 mph;	greater of
		1 mph; 1 kt; 0.5 m/s;	2 to 130 kts	2 mph/kts;
cups)	Anemometer	1 km/h	3 to 241 km/h,	1 m/s; 3 km/h
			1 to 68 m/s	or 5%
Wind Speed (small			3 to 175 mph;	greater of
		1 mph; 1 kt; 0.5 m/s;	3 to 150 kts	3mph; 3 kts;
cups)		1 km/h	1.5 to 79 m/s	1 m/s; 5km/h
			5 to 282 km/h	or 5%
Wind Chill	ISS	1°F; 1°C	-120°to +130°F	2°F;1°C
			-84°to +54°C

***Outside temperature accuracy is based on the temperature sensor itself and not on the sensor and the passive shielding together. The solar radiation induced error for standard ration shield: +4°F (2°C) at solar noon; for fan aspirated radiation shield: +0.6°F (0.3°C) at solar noon (insolation = 1040 W/m2, avg. wind speed ≤ 2 mph (1 m/s), reference: RM Young Model 43408 Fan-Aspirated Radiation Shield).

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